The Use of ATR-FTIR Spectroscopy for Quantification of Adsorbed Compounds

Quantification of adsorbed amounts requires in most cases several assumptions. Adsorption of organic compounds, for example, is usually measured indirectly, by mass balance calculations based on the evaluation of the remaining chemical in solution. Such procedure might yield overestimates when preci...

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Main Authors: Giora Rytwo, Roee Zakai, Bernd Wicklein
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:Journal of Spectroscopy
Online Access:http://dx.doi.org/10.1155/2015/727595
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author Giora Rytwo
Roee Zakai
Bernd Wicklein
author_facet Giora Rytwo
Roee Zakai
Bernd Wicklein
author_sort Giora Rytwo
collection DOAJ
description Quantification of adsorbed amounts requires in most cases several assumptions. Adsorption of organic compounds, for example, is usually measured indirectly, by mass balance calculations based on the evaluation of the remaining chemical in solution. Such procedure might yield overestimates when precipitation or degradation of the adsorbate occurs and underestimates when separation of the sorbent material (e.g., clay particles) with the adsorbed chemical is not effective. This study presents a simple quantification procedure based on the ratio between IR absorption bands of the sorbate and the adsorbate. The advantages of the procedure are (a) direct evaluation of the adsorbed amount and (b) accurate measurement of chemicals that are hard to quantify, as those that do not absorb light in the UV-Visible range, or require expensive chromatography procedures.
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spelling doaj-art-a3da25b923e745e680ee4b6dfb03b93c2025-02-03T05:46:48ZengWileyJournal of Spectroscopy2314-49202314-49392015-01-01201510.1155/2015/727595727595The Use of ATR-FTIR Spectroscopy for Quantification of Adsorbed CompoundsGiora Rytwo0Roee Zakai1Bernd Wicklein2Department of Environmental Sciences, Tel Hai College, 12210 Upper Galilee, IsraelDepartment of Environmental Sciences, Tel Hai College, 12210 Upper Galilee, IsraelMaterials Science Institute of Madrid, Sor Juana Inés de la Cruz 3, 28049 Madrid, SpainQuantification of adsorbed amounts requires in most cases several assumptions. Adsorption of organic compounds, for example, is usually measured indirectly, by mass balance calculations based on the evaluation of the remaining chemical in solution. Such procedure might yield overestimates when precipitation or degradation of the adsorbate occurs and underestimates when separation of the sorbent material (e.g., clay particles) with the adsorbed chemical is not effective. This study presents a simple quantification procedure based on the ratio between IR absorption bands of the sorbate and the adsorbate. The advantages of the procedure are (a) direct evaluation of the adsorbed amount and (b) accurate measurement of chemicals that are hard to quantify, as those that do not absorb light in the UV-Visible range, or require expensive chromatography procedures.http://dx.doi.org/10.1155/2015/727595
spellingShingle Giora Rytwo
Roee Zakai
Bernd Wicklein
The Use of ATR-FTIR Spectroscopy for Quantification of Adsorbed Compounds
Journal of Spectroscopy
title The Use of ATR-FTIR Spectroscopy for Quantification of Adsorbed Compounds
title_full The Use of ATR-FTIR Spectroscopy for Quantification of Adsorbed Compounds
title_fullStr The Use of ATR-FTIR Spectroscopy for Quantification of Adsorbed Compounds
title_full_unstemmed The Use of ATR-FTIR Spectroscopy for Quantification of Adsorbed Compounds
title_short The Use of ATR-FTIR Spectroscopy for Quantification of Adsorbed Compounds
title_sort use of atr ftir spectroscopy for quantification of adsorbed compounds
url http://dx.doi.org/10.1155/2015/727595
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